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WO2023061353A1 - Procédé et appareil utilisés dans un nœud de communication sans fil - Google Patents

Procédé et appareil utilisés dans un nœud de communication sans fil Download PDF

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Publication number
WO2023061353A1
WO2023061353A1 PCT/CN2022/124564 CN2022124564W WO2023061353A1 WO 2023061353 A1 WO2023061353 A1 WO 2023061353A1 CN 2022124564 W CN2022124564 W CN 2022124564W WO 2023061353 A1 WO2023061353 A1 WO 2023061353A1
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WIPO (PCT)
Prior art keywords
csi
type
reports
report
csi report
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English (en)
Chinese (zh)
Inventor
吴克颖
张晓博
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Shanghai Langbo Communication Technology Co Ltd
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Shanghai Langbo Communication Technology Co Ltd
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Publication of WO2023061353A1 publication Critical patent/WO2023061353A1/fr
Priority to US18/633,497 priority Critical patent/US20240259069A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0478—Special codebook structures directed to feedback optimisation
    • H04B7/0481—Special codebook structures directed to feedback optimisation using subset selection of codebooks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]

Definitions

  • the second information block indicates a first threshold and a second threshold;
  • the first reference threshold is equal to the difference between the first threshold and a first integer, the first integer is already in the first symbol The number of occupied processing units of the first type;
  • the second reference threshold is equal to the difference between the second threshold and a second integer, the second integer being the second type already occupied in the first symbol The number of processing units.
  • the first node is a user equipment.
  • the first CSI reporting subset includes a first reporting subgroup and a second reporting subgroup; the first reporting subgroup includes the first M1 of the N CSI reports For all the first-type CSI reports in the CSI reports, M1 is the maximum value of N1 that satisfies the first condition, and the N1 is a positive integer not greater than the N, and the first condition includes the first reference CSI report subset The sum of the first-type integers corresponding to all CSI reports is not greater than a first reference threshold, and the first reference CSI report subset includes all first-type CSIs in the first N1 CSI reports among the N CSI reports report; the second report subgroup includes all second-type CSI reports in the first M2 CSI reports among the N CSI reports, and M2 is the maximum value of N2 that satisfies the second condition set, and N2 is not A positive integer greater than the N, the second condition set includes a second condition, and the second condition includes that the sum of
  • any CSI report in the N CSI reports is a first-type CSI report or a second-type CSI report; any first-type CSI report in the N CSI reports corresponds to a first-type integer , any second-type CSI report in the N CSI reports corresponds to a second-type integer; if any first-type CSI report in the N CSI reports is updated, it does not occupy the second-type processing and the number of the first-type processing units occupied is equal to the corresponding first-type integer; if any second-type CSI report in the N CSI reports is updated, the second-type processing units occupied The number of units is equal to the corresponding integer of the second type; the first node determines whether to update the CSI reports that do not belong to the first CSI report subset among the N CSI reports; the N CSI reports are respectively Corresponding to N priorities, the N CSI reports are arranged in descending order according to the corresponding priorities; the N priorities are used to determine the number of CSI reports included in the first
  • the second sender sends N pieces of CSI configuration information, the N pieces of CSI configuration information are respectively used to determine N pieces of CSI reporting, and the N pieces of CSI reporting do not occupy the first type of processing unit before the first symbol and all Does not occupy the second type of processing unit, N is a positive integer greater than 1;
  • this application has the following advantages:
  • FIG. 2 shows a schematic diagram of a network architecture according to an embodiment of the present application
  • Figure 5 shows a flow chart of transmission according to one embodiment of the present application
  • FIG. 8 shows a schematic diagram in which N priorities are used to determine the number of CSI reports included in the first CSI report subset according to an embodiment of the present application
  • the first node in this application receives N pieces of CSI configuration information in step 101; updates the CSI reporting in the first CSI reporting subset in step 102; sends the first information block in step 103 .
  • the N pieces of CSI configuration information are respectively used to determine N pieces of CSI reporting, and the N pieces of CSI reporting do not occupy the first type of processing unit and do not occupy the second type of processing unit before the first symbol, and N is A positive integer greater than 1
  • the first CSI report subset is a subset of the N CSI reports
  • the first information block includes at least one CSI report in the N CSI reports;
  • the N CSI reports Any CSI report in the report is a first-type CSI report or a second-type CSI report; any first-type CSI report in the N CSI reports corresponds to a first-type integer, and the N CSI reports Any second-type CSI report among the N CSI reports corresponds to a second-type integer; if any first-type CSI report among the N
  • the name of the one IE includes "CSI-ReportConfig".
  • the N pieces of CSI configuration information are respectively carried by N different IEs.
  • the N pieces of CSI configuration information are carried by the same IE.
  • two pieces of CSI configuration information among the N pieces of CSI configuration information are carried by different IEs.
  • the reference signal resource includes an antenna port.
  • any CSI report in the N CSI reports includes one or more CSI report quantities (quantities).
  • one CSI report among the N CSI reports does not include a CSI report amount.
  • the N pieces of CSI configuration information respectively indicate whether the N pieces of CSI reporting include the amount of CSI reporting.
  • the higher layer parameter group corresponding to a CSI report includes "resourcesForChannelMeasurement”, “csi-IM-ResourcesForInterference”, “nzp-CSI-RS-ResourcesForInterference”, “reportQuantity”, “reportConfigType”, “reportFreqConfiguration”, " Some or all of "timeRestrictionForChannelMeasurements”, “timeRestrictionForInterferenceMeasurements”, “cqi-Table”, “subbandSize”, “codebookConfig”, "groupBasedBeamReporting” or “non-PMI-PortIndication”.
  • the N pieces of CSI reporting are respectively one CSI report for the N pieces of CSI configuration information.
  • the meaning of the phrase one CSI report for one CSI configuration information includes: the one CSI report is generated and transmitted according to the configuration of the one CSI configuration information.
  • the N CSI reports are for the same serving cell.
  • two CSI reports among the N CSI reports are for different carriers.
  • the first type subset includes CQI, PMI, CRI, LI, RI, SSBRI, L1-RSRP and L1-SINR.
  • the second type subset includes compressed CSI.
  • the first CSI report subset includes only one CSI report in the N CSI reports.
  • the first information block includes multiple CSI reports in the N CSI reports.
  • the second type of integers are positive integers.
  • the meaning of the sentence updating the CSI reporting in the first CSI reporting subset includes: updating each CSI report in the first CSI reporting subset.
  • the meaning of the sentence that the first node determines whether to update the CSI reports that do not belong to the first CSI report subset among the N CSI reports includes: the first node is not required (not required) to update the CSI reports that do not belong to the first CSI report subset among the N CSI reports.
  • the N CSI reports correspond to N priority values respectively, and the N priority values are real numbers; for any two CSI reports in the N CSI reports, when any two When the priority value corresponding to one CSI report in the CSI reports is lower than the priority value corresponding to the other CSI report in the any two CSI reports, the CSI report corresponding to the one of the any two CSI reports The priority is higher than the priority corresponding to the other CSI report in the any two CSI reports.
  • the N priority values are respectively integers.
  • any two priority values among the N priority values are not equal.
  • the N priorities are used to determine the CSI report included in the first CSI report subset.
  • Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in FIG. 2 .
  • LTE Long-Term Evolution, long-term evolution
  • LTE-A Long-Term Evolution Advanced, enhanced long-term evolution
  • EPS Evolved Packet System
  • 5GS 5G System
  • EPS Evolved Packet System, Evolved Packet System
  • 5GS/EPS 200 may include one or more UEs (User Equipment, User Equipment) 201, a UE241 performing Sidelink communication with UE201, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G CoreNetwork, 5G Core Network)/EPC (Evolved Packet Core, Evolved Packet Core) 210, HSS (Home Subscriber Server, Home Subscriber Server)/UDM (Unified Data Management, Unified Data Management) 220 and Internet Service 230.
  • 5GS/EPS200 May be interconnected with other access networks, but these entities/interfaces are not shown for simplicity.
  • MME/AMF/SMF214 S-GW (Service Gateway, service gateway)/UPF (User Plane Function, user plane function) 212, and P-GW (Packet Date Network Gateway, packet data network gateway)/UPF213.
  • MME/AMF/SMF211 is a control node that handles signaling between UE201 and 5GC/EPC210. In general the MME/AMF/SMF 211 provides bearer and connection management. All user IP (Internet Protocol, Internet Protocol) packets are transmitted through S-GW/UPF212, and S-GW/UPF212 itself is connected to P-GW/UPF213. P-GW provides UE IP address allocation and other functions.
  • P-GW/UPF 213 connects to Internet service 230 .
  • the Internet service 230 includes the Internet protocol service corresponding to the operator, and may specifically include Internet, Intranet, IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) and packet switching (Packet switching) services.
  • the first node in this application includes the UE201.
  • the wireless link between the UE201 and the gNB203 is a cellular network link.
  • the sender of the N pieces of CSI configuration information includes the gNB203.
  • the recipients of the N pieces of CSI configuration information include the UE 201 .
  • the sender of the first information block includes the UE201.
  • the UE201 supports CSI compression and feedback based on CNN (Conventional Neural Networks, convolutional neural network).
  • CNN Conventional Neural Networks, convolutional neural network
  • Embodiment 3 illustrates a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application, as shown in FIG. 3 .
  • Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to the present application, as shown in FIG. 3 .
  • FIG. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300.
  • FIG. 3 shows three layers for the first communication node device (UE, gNB or RSU in V2X) and the second The radio protocol architecture of the control plane 300 between communication node devices (gNB, UE or RSU in V2X), or between two UEs: layer 1, layer 2 and layer 3.
  • Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions.
  • the L1 layer will be referred to herein as PHY 301 .
  • Layer 2 (L2 layer) 305 is above the PHY 301 and is responsible for the link between the first communication node device and the second communication node device, or between two UEs.
  • L2 layer 305 includes MAC (Medium Access Control, Media Access Control) sublayer 302, RLC (Radio Link Control, radio link layer control protocol) sublayer 303 and PDCP (Packet Data Convergence Protocol, packet data convergence protocol) sublayer 304. These sublayers are terminated at the second communication node device.
  • the PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels.
  • the PDCP sublayer 304 also provides security by encrypting data packets, and provides handover support for the first communication node device between the second communication node devices.
  • the RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of packets to compensate for out-of-order reception due to HARQ.
  • the MAC sublayer 302 provides multiplexing between logical and transport channels.
  • the MAC sublayer 302 is also responsible for allocating various radio resources (eg, resource blocks) in a cell among the first communication node devices.
  • the MAC sublayer 302 is also responsible for HARQ operations.
  • the RRC (Radio Resource Control, radio resource control) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (that is, radio bearers) and using the connection between the second communication node device and the first communication node device Inter- RRC signaling to configure the lower layer.
  • radio resources that is, radio bearers
  • the radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer), the radio protocol architecture for the first communication node device and the second communication node device in the user plane 350 is for the physical layer 351, L2
  • the PDCP sublayer 354 in the layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355 are substantially the same as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also Provides header compression for upper layer packets to reduce radio transmission overhead.
  • the wireless protocol architecture in Fig. 3 is applicable to the first node in this application.
  • the wireless protocol architecture in Fig. 3 is applicable to the second node in this application.
  • the N pieces of CSI configuration information are generated in the RRC sublayer 306 .
  • the N pieces of CSI configuration information are generated in the MAC sublayer 302 or the MAC sublayer 352 .
  • the first information block is generated by the PHY301 or the PHY351.
  • the transmit processor 416 implements encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, and based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M Phase Shift Keying (M-PSK), M Quadrature Amplitude Modulation (M-QAM)) constellation mapping.
  • modulation schemes e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M Phase Shift Keying (M-PSK), M Quadrature Amplitude Modulation (M-QAM)
  • BPSK binary phase shift keying
  • QPSK quadrature phase shift keying
  • M-PSK M Phase Shift Keying
  • M-QAM M Quadrature Amplitude Modulation
  • the multi-antenna transmit processor 471 performs digital spatial precoding on the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding,
  • a data source 467 is used to provide upper layer data packets to a controller/processor 459 .
  • Data source 467 represents all protocol layers above the L2 layer. Similar to the transmit function at the first communication device 410 described in DL, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and logical AND based on the radio resource allocation of the first communication device 410. Multiplexing between transport channels, implementing L2 layer functions for user plane and control plane. The controller/processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communication device 410 .
  • the second node in this application includes the first communication device 410 .
  • Embodiment 5 illustrates a flow chart of wireless transmission according to an embodiment of the present application, as shown in FIG. 5 .
  • the second node U1 and the first node U2 are communication nodes that transmit through the air interface.
  • the steps in blocks F51 to F54 are respectively optional.
  • the first node U2 is the first node in this application.
  • two pieces of CSI configuration information among the N pieces of CSI configuration information are transmitted in the same PDSCH.
  • two pieces of CSI configuration information among the N pieces of CSI configuration information are transmitted in different PDSCHs.
  • a part of the first information block is transmitted in the PUCCH, and another part of the first information block is transmitted in the PUSCH.
  • the second information block is carried by MAC CE.
  • the second information block is carried by Layer 3 (L3) signaling.
  • L3 Layer 3
  • the name of the first IE includes "CA-Parameters”.
  • the second information block is transmitted on the PUSCH.
  • the steps in block F52 in FIG. 5 exist; the above-mentioned method used in the second node for wireless communication includes: sending a reference signal in a first reference signal resource; wherein, the first The sender of the information block obtains channel measurements for generating the first CSI before compression based on a reference signal received in the first reference signal resource.
  • the meaning of receiving a reference signal in the first reference signal resource in the sentence includes: receiving a reference signal transmitted according to configuration information of the first reference signal resource.
  • the first node determines the first CSI report subset from the N CSI reports.
  • the steps in block F54 in FIG. 5 exist; the above-mentioned method used in the first node for wireless communication includes: updating the N CSI reports that do not belong to the first CSI report. Set at least one CSI report.
  • the step in block F54 in Fig. 5 does not exist.
  • Embodiment 6 illustrates a schematic diagram in which N priorities are used to determine the number of CSI reports included in the first CSI report subset according to an embodiment of the present application; as shown in FIG. 6 .
  • the first given CSI report is any first-type CSI report in the N CSI reports; if the priority of the N CSI reports is not lower than that of the first given CSI report The total number of the processing units of the first type occupied when all CSI reports of all CSI reports are updated is not greater than the first reference threshold, and the first given CSI report belongs to the first CSI report subset; if the N CSI reports The total number of processing units of the first type occupied when all CSI reports with a medium priority not lower than the first given CSI report are updated is greater than the first reference threshold, and the first given CSI report does not belong to The first CSI reporting subset.
  • all the CSI reports whose priority is not lower than the first given CSI report include the first given CSI report, and the priority of the N CSI reports is All the CSI reports not lower than the second given CSI report include the second given CSI report.
  • the first given CSI report is any first type of CSI report in the N CSI reports
  • the second given CSI report is a second type of CSI report in the N CSI reports.
  • the third given CSI report is a second-type CSI report in the N CSI reports.
  • the third reference CSI report subset consists of all first-type CSI reports in the first N2 CSI reports in the N CSI reports and the first CSI report in the N CSI reports. It consists of all the second-type CSI reports corresponding to one first-type integer among the N2 CSI reports.
  • the third reference CSI report subset does not include the second type of CSI report in the first N2 CSI reports in the N CSI reports.
  • the third reference CSI report subset includes all second-type CSI reports in the first N2 CSI reports among the N CSI reports.
  • the third reference CSI report subset includes only part of the second type of CSI reports in the first N2 CSI reports among the N CSI reports.
  • any CSI report in the fifth reference CSI report subset corresponds to a second-type integer.
  • the fourth reference CSI report subset is composed of all first-type CSI reports in the first N3 CSI reports among the N CSI reports.
  • the fourth reference CSI report subset includes at least one CSI report except all first-type CSI reports in the first N3 CSI reports among the N CSI reports.
  • the N CSI reports there is a second-type CSI report that has no corresponding first-type integer.
  • any second-type CSI report in the N CSI reports corresponds to one first-type integer.
  • the fourth reference CSI report subset consists of all first-type CSI reports in the first N3 CSI reports in the N CSI reports and the first CSI report in the N CSI reports.
  • the N3 CSI reports all the second-type CSI reports corresponding to one first-type integer are composed.
  • the fourth reference CSI report subset includes at least one second-type CSI report in the first N3 CSI reports among the N CSI reports.
  • the fourth reference CSI report subset includes only part of the second type of CSI reports in the first N3 CSI reports among the N CSI reports.
  • Embodiment 16 illustrates a schematic diagram of the first reference threshold, the second reference threshold, the first threshold and the second threshold according to an embodiment of the present application; as shown in FIG. 16 .
  • the first reference threshold is equal to the difference between the first threshold and the first integer, and the first integer is the number of the first type of processing unit already occupied in the first symbol Quantity;
  • the second reference threshold is equal to the difference between the second threshold and the second integer, where the second integer is the number of second-type processing units already occupied in the first symbol.
  • the first reference threshold is determined dynamically.
  • the second reference threshold is determined dynamically.
  • the first reference threshold is the number of unoccupied processing units of the first type in the first symbol.
  • the second reference threshold is the number of unoccupied processing units of the second type in the first symbol.
  • the first threshold and the second threshold are respectively positive integers.
  • the first threshold and the second threshold are positive integers not greater than 8, respectively.
  • the third threshold is fixed.
  • the third threshold is indicated by the first node.
  • the third threshold is configurable.
  • the third threshold is related to the capability of the first node.
  • the third threshold is not greater than 1024.
  • the first threshold is the number of simultaneous first-type CSI calculations supported by the first node
  • the second threshold is the number of simultaneous second-type CSI calculations supported by the first node The number of CSI calculations.
  • two CSI reports among the N CSI reports are for different component carriers, and the first threshold is the number of the first-type processing units owned by the first node on all component carriers , the second threshold is the number of processing units of the second type owned by the first node on all component carriers.
  • the second type of CSI calculation includes AI-based CSI calculation.
  • the second type of CSI calculation includes a coding process based on CsiNet or CRNet.
  • the second type of CSI calculation includes CNN-based CSI compression.
  • the second type of CSI calculation includes the calculation of compressed CSI, or the calculation of compressed CSI and any one of CRI, SSBRI, L1-RSRP, L1-SINR, RI, CQI, PMI, or LI One or more calculations.
  • the first type of processing unit is used for only the first type of CSI calculation in the first type of CSI calculation and the second type of CSI calculation; the second type of processing unit is used Only the second type of CSI calculation in the first type of CSI calculation and the second type of CSI calculation.
  • the first type of processing unit is a CSI processing unit used for the first type of CSI calculation.
  • two CSI reports among the N CSI reports are for different component carriers, and the first integer is the first type of processing that has been occupied on all component carriers in the first symbol the number of units.
  • the second integer is the number of second-type processing units of the first node already occupied in the first symbol.
  • the second integer is the number of second-type processing units already occupied in the first symbol and used for the first-type CSI calculation and the second-type CSI calculation.
  • two CSI reports among the N CSI reports are for different component carriers, and the second integer is the second type of processing that has been occupied on all component carriers in the first symbol the number of units.
  • the processing units of the first type already occupied in the first symbol are occupied from before the first symbol.
  • the processing unit of the second type already occupied in the first symbol is occupied from before the first symbol.
  • the first compressed CSI includes one or more of CQI, CRI, or RI.
  • the first compressed CSI includes a matrix
  • the first compressed CSI includes a vector.
  • the first compressed CSI includes amplitude and phase information of elements in a channel matrix.
  • the first CSI before compression includes amplitude and phase information of elements in a channel matrix.
  • the first CSI before compression includes a channel matrix.
  • the mathematical transformation includes DFT (Discrete Fourier Transform).
  • the mathematical transformation includes one or more of quantization, transformation from space domain to angle domain, transformation from frequency domain to time domain, or truncation.
  • the first pre-compression CSI consists of Q1 bits
  • the first compressed CSI consists of Q2 bits
  • Q1 and Q2 are respectively positive integers greater than 1
  • the Q1 is greater than the Q2.
  • the first function includes a neural network for CSI compression.
  • two sub-functions among the K1 sub-functions respectively include a fully-connected layer and at least one coding layer.
  • one encoding layer includes at least one convolutional layer and one pooling layer.
  • Embodiment 18 illustrates a schematic diagram of the first compressed CSI according to an embodiment of the present application; as shown in FIG. 18 .
  • the first compressed CSI is used as an input of the second function by the target receiver of the first information block to generate the first CSI.
  • the first CSI includes an estimated value of the first CSI before compression.
  • the first CSI includes PMI.
  • the first CSI includes one or more of CQI, CRI, or RI.
  • the first CSI includes a channel matrix.
  • the first CSI includes amplitude and phase information of elements in a channel matrix.
  • the first CSI includes information of a channel matrix.
  • the first function is used to compress the first uncompressed CSI to reduce the air interface overhead of the first compressed CSI
  • the second function is used to compress the first compressed CSI Decompression is performed to recover the first pre-compression CSI as much as possible.
  • an encoder and a decoder based on CsiNet or CRNet are respectively used to implement the first function and the second function.
  • Embodiment 19 illustrates a schematic diagram in which the first node obtains channel measurement for generating the first pre-compression CSI based on the reference signal received in the first reference signal resource according to an embodiment of the present application; as shown in FIG. 19 .
  • the first reference signal resources include CSI-RS resources or SS/PBCH block resources.
  • the first reference signal resource includes a DMRS port.
  • the first reference signal resource is associated with the first function.
  • the first node will obtain channel measurements used to calculate the input of the first function based on the reference signal received in the first reference signal resource.
  • the first node receives indication information from a target recipient of the first information block indicating that the first reference signal resource is associated with the first function.
  • the first CSI includes amplitude and phase information of elements in the first channel matrix.
  • the first CSI includes an estimated value of the first channel matrix.
  • the first CSI before compression includes amplitude and phase information of elements in the first channel matrix.
  • the frequency unit is a PRB (Physical Resource Block, physical resource block).
  • PRB Physical Resource Block, physical resource block
  • the frequency unit is composed of multiple consecutive PRBs.
  • the receiving of the reference signal in the first reference signal resource occurs before determining the first CSI reporting subset.
  • the receiving of the reference signal in the first reference signal resource occurs after the first CSI reporting subset is determined.
  • any CSI report in the N CSI reports is a first-type CSI report or a second-type CSI report; any first-type CSI report in the N CSI reports corresponds to a The first-type integer, any second-type CSI report in the N CSI reports corresponds to a second-type integer; if any first-type CSI report in the N CSI reports is updated, it does not occupy the The second type of processing unit and the number of the first type of processing units occupied is equal to the corresponding first type of integer; if any second type of CSI report in the N CSI reports is updated, the occupied The number of processing units of the second type is equal to the corresponding integer of the second type; the first node determines whether to update the CSI reports among the N CSI reports that do not belong to the first CSI report subset; the N The CSI reports correspond to N priorities respectively, and the N CSI reports are arranged in descending order according to the corresponding priorities; the N priorities are used to determine the first CSI reporting subset
  • the first CSI reporting subset includes a first reporting subgroup and a second reporting subgroup; the first reporting subgroup includes all of the first M1 CSI reports among the N CSI reports
  • the first type of CSI reporting, M1 is the maximum value of N1 that satisfies the first condition, where N1 is a positive integer not greater than the N, and the first condition includes all CSI reports corresponding to all CSI reports in the first reference CSI reporting subset.
  • At least one second-type CSI report in the N CSI reports corresponds to a first-type integer
  • the first reference CSI report subset also includes the first N1 of the N CSI reports All the second-type CSI reports corresponding to a first-type integer in the CSI reports
  • the second condition set further includes a third condition
  • the third condition includes the corresponding CSI reports in the third reference CSI report subset.
  • the sum of the first type of integers is not greater than the first reference threshold
  • the third reference CSI report subset includes all the first type of CSI reports in the first N2 CSI reports among the N CSI reports and all All of the first N2 CSI reports among the N CSI reports correspond to a second-type CSI report corresponding to a first-type integer.
  • At least one second-type CSI report in the N CSI reports corresponds to a first-type integer; the fourth reference CSI report subset also includes the first N3 of the N CSI reports All the second-type CSI reports corresponding to a first-type integer among the CSI reports.
  • the first transmitter 2003 sends a second information block; wherein, the second information block indicates a first threshold and a second threshold; the first reference threshold is equal to the first threshold and the first The difference between the integers, the first integer is the number of processing units of the first type already occupied in the first symbol; the second reference threshold is equal to the difference between the second threshold and the second integer, the The second integer is the number of processing units of the second type already occupied in said first symbol.
  • the first information block includes a first CSI report, and the first CSI report is a second type of CSI report in the first CSI report subset; the first CSI report includes a first compressed CSI, the first CSI before compression is used as an input of the first function to generate the first compressed CSI.
  • the first processor 2002 determines the first CSI reporting subset.
  • the first processor 2002 updates at least one CSI report that does not belong to the first CSI report subset among the N CSI reports.
  • the shown first processor 2002 receives a reference signal in a first reference signal resource; wherein, the first node obtains the reference signal used to generate the Channel measurements of CSI before first compression.
  • the first node device is user equipment.
  • the N CSI configuration information is carried by N IEs respectively, and the names of the N IEs all include "CSI-ReportConfig"; the N CSI reports are respectively for the N CSI configurations A CSI report of information; the first information block includes CSI; there are two CSI reports in the N CSI reports, which are the first type of CSI report and the second type of CSI report; the first type of integer is a non-negative integer , the integers of the second type are non-negative integers.
  • the first type of processing unit includes a CSI processing unit for the first type of CSI calculation, and the first type of CSI calculation includes CRI, SSBRI, L1-RSRP, L1-SINR, RI, CQI, PMI , the calculation of any one or more of LI;
  • the second type of processing unit includes a processing unit for second type of CSI calculation.
  • the second type of CSI calculation includes the calculation of compressed CSI.
  • the second type of CSI calculation includes a coding process based on CsiNet or CRNet.
  • the first processor 2002 includes ⁇ antenna 452, receiver 454, receiving processor 456, multi-antenna receiving processor 458, controller/processor 459, memory 460, data source in Embodiment 4 467 ⁇ at least one of.
  • the first transmitter 2003 includes ⁇ antenna 452, transmitter 454, transmission processor 468, multi-antenna transmission processor 457, controller/processor 459, memory 460, data source in Embodiment 4 467 ⁇ at least one of.
  • Embodiment 21 illustrates a structural block diagram of a processing device used in a second node device according to an embodiment of the present application; as shown in FIG. 21 .
  • the processing device 2100 in the second node device includes a second transmitter 2101 and a second receiver 2102 .
  • the second transmitter 2101 is a second transmitter that transmits N pieces of CSI configuration information, and the N pieces of CSI configuration information are respectively used to determine N pieces of CSI reporting, and the N pieces of CSI reporting are in the first symbol Neither the first type of processing unit nor the second type of processing unit was occupied before, N is a positive integer greater than 1; the second receiver 2102 receives the first information block, and the first information block includes the N CSI At least one CSI report in the reports.
  • any CSI report in the N CSI reports is a first-type CSI report or a second-type CSI report; any first-type CSI report in the N CSI reports corresponds to a The first-type integer, any second-type CSI report in the N CSI reports corresponds to a second-type integer; if any first-type CSI report in the N CSI reports is updated, it does not occupy the The second type of processing unit and the number of the first type of processing units occupied is equal to the corresponding first type of integer; if any second type of CSI report in the N CSI reports is updated, the occupied The number of processing units of the second type is equal to the corresponding integer of the second type; the sender of the first information block updates the CSI reporting in the first CSI reporting subset, and the first CSI reporting subset is the N A subset of CSI reports; the sender of the first information block determines whether to update the CSI reports that do not belong to the first CSI report subset among the N CSI reports; the
  • the first CSI reporting subset includes a first reporting subgroup and a second reporting subgroup; the first reporting subgroup includes all of the first M1 CSI reports among the N CSI reports
  • the first type of CSI reporting, M1 is the maximum value of N1 that satisfies the first condition, where N1 is a positive integer not greater than the N, and the first condition includes all CSI reports corresponding to all CSI reports in the first reference CSI reporting subset.
  • At least one second-type CSI report in the N CSI reports corresponds to a first-type integer
  • the first reference CSI report subset also includes the first N1 of the N CSI reports All the second-type CSI reports corresponding to a first-type integer in the CSI reports
  • the second condition set further includes a third condition
  • the third condition includes the corresponding CSI reports in the third reference CSI report subset.
  • the sum of the first type of integers is not greater than the first reference threshold
  • the third reference CSI report subset includes all the first type of CSI reports in the first N2 CSI reports among the N CSI reports and all All of the first N2 CSI reports among the N CSI reports correspond to a second-type CSI report corresponding to a first-type integer.
  • the first CSI report subset is composed of the first M3 CSI reports among the N CSI reports; the M3 is the maximum value of N3 that satisfies both the fourth condition and the fifth condition, and the N3 is a positive integer not greater than the N; the fourth condition includes that the sum of the first-type integers corresponding to all CSI reports in the fourth reference CSI report subset is not greater than the first reference threshold, and the fourth reference The CSI report subset includes all first-type CSI reports in the first N3 CSI reports among the N CSI reports; the fifth condition includes the second CSI report corresponding to all CSI reports in the fifth reference CSI report subset. The sum of class integers is not greater than a second reference threshold, and the fifth reference CSI report subset is composed of all second-class CSI reports in the first N3 CSI reports among the N CSI reports.
  • At least one second-type CSI report in the N CSI reports corresponds to a first-type integer; the fourth reference CSI report subset also includes the first N3 of the N CSI reports All the second-type CSI reports corresponding to a first-type integer among the CSI reports.
  • the first information block includes a first CSI report, and the first CSI report is a second type of CSI report in the first CSI report subset; the first CSI report includes a first compressed CSI, the first CSI before compression is used as an input of the first function to generate the first compressed CSI.
  • the device in the second node is a base station device.
  • the device in the second node is user equipment.
  • the device in the second node is a relay node device.
  • the first type of processing unit includes a CSI processing unit for the first type of CSI calculation, and the first type of CSI calculation includes CRI, SSBRI, L1-RSRP, L1-SINR, RI, CQI, PMI , the calculation of any one or more of LI;
  • the second type of processing unit includes a processing unit for second type of CSI calculation.
  • the second type of CSI calculation includes the calculation of compressed CSI.
  • the second transmitter 2101 includes ⁇ antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller/processor 475, memory 476 ⁇ in Embodiment 4 at least one.
  • the second receiver 2102 includes ⁇ antenna 420, receiver 418, receiving processor 470, multi-antenna receiving processor 472, controller/processor 475, memory 476 ⁇ in Embodiment 4 at least one.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande divulgue un procédé et un appareil utilisés dans un nœud de communication sans fil. Le procédé comprend les étapes suivantes : un premier nœud reçoit N éléments d'informations de configuration de CSI ; met à jour un rapport de CSI dans un premier sous-ensemble de rapports de CSI ; et envoie un premier bloc d'informations. Les N éléments d'informations de configuration de CSI sont utilisés pour déterminer respectivement N rapports de CSI, et le premier sous-ensemble de rapports de CSI est un sous-ensemble des N rapports de CSI ; le premier bloc d'informations comprend au moins un rapport de CSI parmi les N rapports de CSI ; tout rapport de CSI d'un premier type parmi les N rapports de CSI correspond à un entier d'un premier type, et tout rapport de CSI d'un second type parmi les N rapports de CSI correspond à un entier d'un second type ; et les N rapports de CSI correspondent respectivement à N priorités, et les N priorités sont utilisées pour déterminer le nombre de rapports de CSI qui sont compris dans le premier sous-ensemble de rapport de CSI. Au moyen du procédé, différentes unités de traitement sont configurées pour des rapports de CSI ayant différentes exigences de capacité de calcul de CSI, ce qui permet d'éviter le gaspillage de puissance de calcul.
PCT/CN2022/124564 2021-10-12 2022-10-11 Procédé et appareil utilisés dans un nœud de communication sans fil Ceased WO2023061353A1 (fr)

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